EOS M3vs Olympus OM-D E-M5 III
OM System
Olympus OM-D E-M5 III (2019)
Starting from £699 new
Best for Travel & lightweight outdoor photography
View Olympus OM-D E-M5 III
GearScore™ Verdict — Which should you buy?
Casual & Everyday — EOS M3 (2015): The EOS M3 was a meaningful upgrade over the original EOS M — bringing 24MP, a tilting touchscreen, and improved Hybrid CMOS AF III. Video tops out at 1080p/30p and burst shooting is modest, but for stills photographers wanting affordable APS-C quality, the M3 is a competent used-market option.
Travel & Lightweight Outdoor Photography — Olympus OM-D E-M5 III (2019): The lightest weather-sealed MFT camera — compact, travel-friendly, and capable with 7.5-stop IBIS in a body that fits in a jacket pocket.
Who should buy what
EOS M3 (2015)
- Photographers who want affordable 24MP APS-C quality on a budget
- Casual shooters who want a compact EF-M camera with a tilting screen
- Users looking for an affordable entry into the Canon EF-M ecosystem
- Used-market buyers wanting a capable but inexpensive mirrorless
Olympus OM-D E-M5 III (2019)
- Travel photographers who want a compact, weather-sealed MFT body
- Outdoor photographers upgrading from the E-M10 who want better sealing
- Enthusiasts who want strong IBIS in a lightweight, portable system
- Photographers who want a capable travel camera that won't weigh them down
Quick take: The eos m3 has the highest resolution at 24mp; the eos m3 is the most affordable; only the olympus om-d e-m5 iii is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS M3 (2015) | Olympus OM-D E-M5 III (2019) |
|---|---|---|
| Price | £150 | £699 |
| Sensor | 24.2MP APS-C CMOS | 20.4MP Micro Four Thirds Live MOS |
| Resolution | 24.2MP | 20.4MP |
| Video | 1080p/30p | 4K/30p, 1080p/120p |
| Autofocus | Hybrid CMOS AF III (phase-detect + contrast-detect) | Hybrid phase/contrast AF with face/eye detection |
| Stabilisation | — | 7.5-stop 5-axis IBIS |
| Burst Rate | 4.2fps | 30fps electronic / 10fps mechanical |
| Battery Life | ~250 shots (CIPA) | 390 shots (CIPA) |
| Weight | 366g (body only) | 414g body only |
| Dimensions | 110.9 × 68.0 × 44.4mm | 125.3 × 85.2 × 49.7mm |
| Weather Sealed | No | Yes |
| Viewfinder | None (optional EVF-DC1 accessory) | 0.35" OLED EVF, 2.36M dots |
| Screen | 3.0" tilting touchscreen, 1.04M dots | 3.0" fully articulating touchscreen |
| Mount | Canon EF-M mount | Micro Four Thirds |
| Memory Cards | Single SD UHS-I slot | Single SD UHS-I |
| Connectivity | USB, Wi-Fi, NFC | Micro USB, Wi-Fi, Bluetooth |
Suitability by genre
| Genre | EOS M3 | Olympus OM-D E-M5 III |
|---|---|---|
| Casual | — | |
| Travel | ||
| Portrait | ||
| Street | ||
| Vlogging & Video | ||
| Sports & Action | ||
| Landscape | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
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Camera family history